diff --git a/.gitignore b/.gitignore
index f81fef2..e04e3be 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,3 +17,4 @@
 /futures-channel-0.3.17.crate
 /futures-channel-0.3.18.crate
 /futures-channel-0.3.19.crate
+/futures-channel-0.3.21.crate
diff --git a/rust-futures-channel.spec b/rust-futures-channel.spec
index 59266c5..6d07d0a 100644
--- a/rust-futures-channel.spec
+++ b/rust-futures-channel.spec
@@ -6,7 +6,7 @@
 %global crate futures-channel
 
 Name:           rust-%{crate}
-Version:        0.3.19
+Version:        0.3.21
 Release:        %autorelease
 Summary:        Channels for asynchronous communication using futures-rs
 
diff --git a/sources b/sources
index bd77475..8e6d9c1 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (futures-channel-0.3.19.crate) = 06acb15c125f20f305173cc5ac77e1502a857ea8e80e4fa33bf4e51982b1af71c8d31e800cc3151d7d52c3db69d9be5d7500690664d073e329626c2d4b2763a4
+SHA512 (futures-channel-0.3.21.crate) = 1c10398657949b53b6df196cc44d8e4b3acf53b4d216be6f5f631d8d4b500f5c344e2cc7d5a5642ced6c5480511884611be6d429f56a0ede4a716b9c5770cb76